Balanophora yakushimensis

There are two species of parasitic balanophors present on Yakushima. Balanophora japonica has yellow flowers and feeds off the roots of trees in the Symplocos family. Balanophora yakushimensis has red flowers and feeds off the roots of Distylium racemosum. The flowers are usually hidden underneath the red spadicles, so look around to see what trees are present in the area.
For more details, see: [Huei-Jiun Su, Jin Murata, Jer-Ming Hu. Morphology and phylogenetics of two holoparasitic plants, Balanophora japonica and Balanophora yakushimensis (Balanophoraceae), and their hosts in Taiwan and Japan. J Plant REs (2012) 125:317-326.